University of leeds science with an interdisciplinary year

Is this course worth doing? Is the pass rate high or low

Pass rates will vary depending on the group, at university whether you pass or fail really depends on the quality of work, rather than how many other people are passing, if that makes sense?
Are you holding an offer for this course?

I had an offer but I am thinking of going through clearing as I declined my offer originally

So you're thinking of picking Leeds up through clearing having declined your place at a different uni?
Just making sure I understand right

i have not declined my insurance but i am thinking of going to Leeds throughout clearing

My advice would be to leave your insurance in place on UCAS and then ring up Leeds and see what they say